tailodds FORECAST
Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Denver → Huntsville via Dulles: arrives on time 56%

  1. 15:40 DEN → 21:11 IAD
    UA 421 · United · 3h 31m · 71% on time, 0.0% cancelled
  2. 59m layover in Dulles (IAD) · 45 min minimum on one ticket
  3. 22:10 IAD → 23:24 HSV
    UA 4901 · United, flown by CommuteAir · 2h 14m · 82% on time, 3.0% cancelled

Total trip 6h 44m, scheduled departure to arrival (Huntsville is 1 h ahead of Denver). Times are local. Both flew on 53 of the last 56 days.

Makes the connection70%The first flight arrived more than 14 minutes late on 30% of the days it flew: too late for the 45-minute minimum connection on a 59m layover.
Arrives on time56%First flight not cancelled (0.0% are) × connection made (70%) × second flight not cancelled (3.0% are) and within 15 minutes (82%).
Total trip6h 44mDEN 15:40 to HSV 23:24, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.